From a woman's point of view ,,,,,,,,,,,, I prefer the bigger one.
I use it for changing, I put my duffle with clothes in there, the dirty clothes bag and a travel john. I still have room to move around.
I like the bar on the outside for hanging towels.
I can set it up and take it down by myself without problems.
Last time I was at Cabella's, they had both set up and I decided that this one was definitely the one to get. Comes with a hanging shelf and the shower. The top piece is a rain fly so you don't have to put it under a shelter if it's raining.